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arXiv 2103.01129hep-phhep-thnucl-th
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突现强子和双夸克

Emergent Hadrons and Diquarks

Kenji Fukushima, Jan M. Pawlowski, Nils Strodthoff

摘要:

从第一性原理QCD出发,讨论了夸克、介子、双夸克和重子在零态和有限重子密度下低能有效理论的出现。本工作还包括一个概述双夸克在消失和有限密度,并阐明了从重子物质到夸克物质,包括双夸克的过渡变化的物理。这种设置内讨论的功能重整化群的方法与动力学强子化。在这个框架中,它是详细的介子,双夸克,重子出现动态的重整化流的QCD有效的行动。此外,QCD的基本自由度,夸克和胶子,在各自的质量间隙以下与QCD的动力学解耦。由此产生的全球图片统一的不同的低能量有效的理论用于低密度和高密度内QCD,并允许直接从QCD确定各自的低能量常数。

英文摘要:

We discuss the emergence of a low-energy effective theory with quarks, mesons, diquarks and baryons at vanishing and finite baryon density from first principle QCD. The present work also includes an overview on diquarks at vanishing and finite density, and elucidates the physics of transitional changes from baryonic matter to quark matter including diquarks. This set-up is discussed within the functional renormalisation group approach with dynamical hadronisation. In this framework it is detailed how mesons, diquarks, and baryons emerge dynamically from the renormalisation flow of the QCD effective action. Moreover, the fundamental degrees of freedom of QCD, quarks and gluons, decouple from the dynamics of QCD below the respective mass gaps. The resulting global picture unifies the different low energy effective theories used for low and high densities within QCD, and allows for a determination of the respective low energy constants directly from QCD.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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